Mathematics
Senior High
解説お願いします💦
3. EX
BD = " とするとき, 7,777で表せ。
a
ABCDEFT, AB=a, AF-6, AD=u,
b =
ů - ú
B
C
a
A
O
D
方
E
3. a=u-v, b=-u + v
8
Answers
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